Film-end fastener for motion-picture-film reels



M. F. WALKER.

FILM END FASTENER FOR MOTION PICTURE FILM REELS.

APPLICATION FILED SEPT. 25,1918.

1 28,408, Patented Jan. 20, 1920.

unrrnn smrns PATENT curios.

MOSES F. WALKER, G lli CAEJIZ, OHIO.

FILM-END FASTENER FOR MOTIOPN-PIGTURE-FILM REELS.

Specification of Letters Patent. Patented Jan. 20, 1920.

Continuation of application Serial No. 222.436, filed March14, 1918.This application filed September 25,

1918. Serial No. 255,717.

flo'aZZ'wh-om. it may concern: v

Be it known that I, Moses. F. WALKER,

. a citizen of the United States, residing at..

Cadiz, in the county of Harrison and State of Ohio, have inventedcertain new and useful Improvements. in Film-End Fasteners forMotion-Picture-Film Reels, of which the following is a. specification.

This invention relates to motion picture film reels and moreparticularly to the means provided for connecting the end of the film tothe hub of the reel.

The primary object of the present invention is to provide means for thepurpose may be readily inserted between any two of the said Web portionsIn order that may be gripped and connected securely with the hub, meansis provided within the hub or, in other words, within the annular seriesof web portions 2, for frictionally binding the end. of the film againstthe inner side of any one of the web portions 2 beneath which the end ofthe film is inserted. The

means above referred to is, in both forms of the invention, in thenature of -a contracted resilient body havin a normal tendency toexpand.- In that orm of the inabove stated which will permit of the endvention shown in Figs. 1 and 2 of the drawof the film strip beingreadily and securely connected with the hub of the reel and yet in amanner to permit of its ready disengagement after the film has beencompletely unwound from the reel.

Another object of'the invention is to provide a connecting device forthe purpose stated which will adapt the film to be connected with thehub of the reel without the necessity (if-providing any connectingelements upon the film and without likelihood of mutilating the filmend.

This application is a continuation of my co-pending application filedMarch 14, 1918, Serial No. 222,436.

. In the accompanying drawings:

Figure 1' is a vertical sectional view through a film reel embodying theconnecting device forming the subject matter of the invention;

Fig. 2 is a perspective view illustrating the hub of the reel and themeans provided within the hub for gripping the end of the film to bewound upon the reel;

Fig. 3 is a view similar to Fig. 1 illustrating a modification of theinvention.

The heads of the film reel are indicated in general by the numeral 1 andthe hub of the reel comprises a series of web portions 2 which extendbetween the heads of ings, the body, indicated in general by the numeral3, is in the nature of a; relatively broad leaf spring having a normaltendency to flatten out, but coiled to circular form and fitted withinthe hub so as to be surrounded by the series of web portions 2, againstthe inner sides of which the body is caused to firmly bear because ofits inherent expansibility. In this form of the invention one end of thebody is recessed as at 4 and the other end of the body is reduced inwidth by cutting away its opposite edge portions to provide a tongue 5which fits within the recess 1 or, in other words, between the tongues 6which are provided by forming the said recess 4. By reason'of thisconstruction, the body 3 may be contracted and expanded, but there willbe no gap between its ends and consequently all portions of the body areeffective for gripping the film when the end of the film when the end ofthe film is so inserted it is inserted between the body and any one itsend which is connected with the said bolt 7, as shown in the saidfigure. As in the previously described form of the invention, the spring8 in this form has a normal tendency to expand and consequently bearsfirmly against the inner sides of all of the web portions 2 and willgrip the end of a film inserted between it and any of the said webportions.

It will be understood, of course, that the hub might be formed solid orintegral throughout and provided with one or more slots to receive theend of the film, the spaces between the web ortions 2 constituting ineffect slots to receive the film end.

Having thus described the invention, what is claimed as new is:

1. The combination with a film reel having a hollow hub provided with arelatively wide transverse opening,'of a leaf spring formingsubstantially a continuation of the hub surface to support the film andexpanded within the hub and bearing against the inner side thereof, andconstituting means for binding the end of a film strip inserted throughsaid. opening.

2. A film reel having a hollow hub provided in its wall with a pluralityof transverse slots, and a leaf spring expanded within the hub andbearing against the inner side thereof and constituting means for bindinthe end of a film strip inserted througi any one of said slots, the endsof the spring having interfitting portions.

3. A film reel havingside members connected by Webs forming a hub anannular leaf spring expanded within said hub against 'the inner sides ofsaid webs whereby a film end may be inserted beneath any web andfrictionally held by the en agement of said spring therewith, said we sbeing widely spaced apart permittin easy insertion of the film andallowing t e film to naturally follow the configuration of the hubavoidmg sharp crimps tending to mutilate the film end.

4. As an article of manufacture, a reel comprising a side. portionhaving webs struck up at right angles thereto and inclosing an annularleaf spring expanded against the inner sides ofsaid webs to form afastening means, and an opposite side secured to said webs to inclosesaid spring and complete the reel.

5. In a reel, a hub having widely spaced members inclosing an annularleaf spring bearing against the underside of .each web to form afriction clutch for material inserted between any web and said springs,said spring having a transverse tongue and groove division permittingexpansion while presenting a substantially continuous support forarticles passing thereover.

. In testimony whereof I aflix my signature.

MOSES F. WALKER. [L.S.]

